High-efficiency blue phosphorescent organic light-emitting diodes using a carbazole and carboline-based host material
作者:Sun Jae Kim、Young Jae Kim、Young Hoon Son、Jung A. Hur、Hyun Ah Um、Jicheol Shin、Tae Wan Lee、Min Ju Cho、Jung Keun Kim、Sunghoon Joo、Joong Hwan Yang、Gee Sung Chae、Kihang Choi、Jang Hyuk Kwon、Dong Hoon Choi
DOI:10.1039/c3cc42569j
日期:——
A novel bipolar host 9-(4-(9H-pyrido[2,3-b]indol-9-yl)phenyl)-9H-3,9′-bicarbazole (pBCb2Cz) was prepared for high efficiency blue phosphorescent organic light-emitting diodes (PhOLEDs), a high triplet energy (ET) material, employing electron-deficient α-carboline. pBCb2Cz (ET = 2.93 eV) was effective as a host material for FIrpic- and FCNIrpic-based blue PhOLEDs, and highest quantum efficiencies of 23.0 and 16.2%, respectively, were achieved.
一种新型双极宿主9-(4-(9H-吡啶[2,3-b]吲哚-9-基)苯基)-9H-3,9'-双咔唑(pBCb2Cz)被开发用于高效率蓝光磷光有机发光二极管(PhOLEDs),这是一种高三重态能量(ET)材料,采用了电子缺乏的α-卡宾。pBCb2Cz(ET = 2.93 eV)在FIrpic和FCNIrpic基蓝光PhOLED中作为宿主材料效果显著,分别实现了最高量子效率23.0%和16.2%。